	US 12,448,532 B2
	Inkjet inks
Yuta Matsumoto, Cincinnati, OH (US); and Todd Tritcak, Cincinnati, OH (US)
Assigned to Kao Corporation, Tokyo (JP)
Appl. No. 17/787,486
Filed by Kao Corporation, Tokyo (JP)
PCT Filed Dec. 20, 2019, PCT No. PCT/US2019/068041 § 371(c)(1), (2) Date Jun. 20, 2022, PCT Pub. No. WO2021/126267, PCT Pub. Date Jun. 24, 2021.
Prior Publication US 2023/0050122 A1, Feb. 16, 2023
Int. Cl. C09D 11/108 (2014.01)

CPC C09D 11/108 (2013.01)

17 Claims

1. An inkjet ink, comprising:

(A) a terpene resin made from a-pinene; and

(B) methyl ethyl ketone,

wherein the terpene resin (A) is a homopolymer made from a-pinene, and

the terpene resin (A) has a number average molecular weight of 700 to 800 mol/g, a softening point of 140° C. or less, and a bromine number of 27 to 31,5.